Laser head AB-axis swinging mechanism

Abstract

The invention discloses a laser head AB shaft swing mechanism which comprises a U-shaped seat and a stop mechanism, a square frame is rotationally installed on the U-shaped seat, a motor A used for controlling the square frame to rotate is further installed on the U-shaped seat, a motor B perpendicular to a driving shaft of the motor A is installed on the square frame, a second rotating shaft is installed on a driving shaft of the motor B, and a first rotating shaft is installed on the second rotating shaft. The square frame is further provided with a disconnection mechanism used for being disconnected with or connected with the second rotating shaft, the disconnection mechanism is provided with a first rotating shaft, the first rotating shaft is provided with a laser head, and the stop mechanism is used for positioning and stopping the first rotating shaft.

Description

Technical Field

[0001] The invention relates to the technical field of laser welding, in particular to an AB axis swing mechanism of a laser head. Background Art

[0002] With the continuous development of laser processing technology, laser processing technologies such as laser cutting and laser welding are widely used in industrial production. During the laser processing process, the positioning accuracy and swing flexibility of the laser head directly affect the processing efficiency and quality.

[0003] The AB axis swing mechanism is a new type of laser head swing mechanism, which can realize the independent swing of the laser head in the A axis and B axis directions. Problems existing in the existing technology:

[0004] (1) Insufficient swing accuracy: Due to the imperfection of the transmission mechanism and control system, the existing AB axis swing mechanism is prone to precision deviation during the swing process, resulting in unstable processing quality.

[0005] (2) Limited swing range: The design of some AB-axis swing mechanisms has limitations, which results in a limited swing range of the laser head, making it difficult to meet the multi-angle processing requirements of complex workpieces.

[0006] (3) Large start-stop time delay: This results in poor adjustment time effect during the rotation adjustment process.

[0007] Therefore, it is necessary to provide a laser head AB axis swing mechanism to solve the problems raised in the above background technology. Summary of the invention

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a laser head AB axis swing mechanism, comprising a U-shaped seat and a stopping mechanism, a square frame is rotatably mounted on the U-shaped seat, an A motor for controlling the rotation of the square frame is also mounted on the U-shaped seat, a B motor perpendicular to the A motor drive shaft is mounted on the square frame, a rotating shaft 2 is mounted on the B motor drive shaft, a disconnecting mechanism for disconnecting or connecting with the rotating shaft 2 is also mounted on the square frame, a rotating shaft 1 is mounted on the disconnecting mechanism, a laser head is mounted on the rotating shaft 1, and the stopping mechanism is used to position and stop the rotating shaft 1.

[0009] Furthermore, the disconnection mechanism includes a swivel ring 1 rotatably connected to the square frame, a plurality of swing openings are arranged circumferentially on the ring wall of the swivel ring 1, a swivel column is installed at the center of the swing opening, a swing rod is rotatably installed on the swivel column, an end of the swing rod away from the center of the swivel ring 1 is provided with a sliding opening, an end of the swing rod close to the center of the swivel ring 1 corresponds to the outer wall of the rotating shaft 2, an end of the swivel ring 1 away from the rotating shaft 2 is fixedly connected to the rotating shaft 1, a swivel ring 2 is also rotatably installed on the ring wall of the swivel ring 1, a fixed column slidably connected to the sliding opening is installed on the side of the swivel ring 2 close to the swing rod, a gear ring 1 is installed on the outer wall of the swivel ring 2, a control push rod is installed on the square frame, and a rack for meshing with the gear ring 1 is installed on the control push rod.

[0010] Furthermore, the control push rod includes a sliding rod installed on a square frame, a sliding cylinder slides on the sliding rod, the sliding cylinder is connected to the sliding rod by a spring, a magnetic block is installed on one end of the sliding cylinder away from the sliding rod, and an electromagnet installed on the square frame is provided on the side of the magnetic block away from the sliding cylinder.

[0011] Furthermore, a rubber sleeve for cooperating with the rocker arm is installed on the outer wall of the second rotating shaft.

[0012] Furthermore, the rubber sleeve is provided with rough grooves in the axial direction.

[0013] Furthermore, when the electromagnet and the magnetic block repel each other and separate, the swing rod and the rubber sleeve are separated.

[0014] Furthermore, the stopping mechanism includes a fixed ring, a rotating ring three and a forward and reverse motor. The rotating ring three is rotatably installed on the rotating shaft one, the gear ring two is installed on the side of the rotating ring three close to the square frame, and the stop block two is installed on the side of the rotating ring three away from the square frame. The forward and reverse motor is installed on the square frame, and a gear meshing with the gear ring two is installed at the output end of the forward and reverse motor. The fixed ring is fixed on the rotating shaft one, and a stop block one corresponding to the stop block two is installed on the fixed ring.

[0015] Furthermore, buffer pads are respectively installed on both side surfaces of the second stopper.

[0016] Furthermore, a conductor is installed in the first block, and a magnet that attracts the conductor is installed in each of the second blocks.

[0017] Compared with the prior art, the present invention provides a laser head AB axis swing mechanism, which has the following beneficial effects:

[0018] In the present invention, the structural design of the disconnecting mechanism and the stopping mechanism is used to further improve the swing accuracy of the laser head adjustment, so that each time the laser head is adjusted, the B motor can drive the rotating shaft 1 to rotate in a continuously accelerating driving mode. When the laser head is adjusted to the desired position, the power output of the B motor to the rotating shaft 1 is directly disconnected, thereby shortening the time for the laser head to be adjusted to the desired position, making the control of the laser head more efficient. Among them, the A motor does not rotate during the adjustment of the laser head, and there will be no interference with the material to be processed, so that the A axis can rotate at a larger angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the AB axis swing mechanism of a laser head of the present invention;

[0020] Figure 2 It is a partial structural schematic diagram of the stop mechanism of the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the gear ring II of the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of the disconnection mechanism of the present invention;

[0023] Figure 5 It is a structural schematic diagram of a rotating shaft of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the second stopper of the present invention;

[0025] Figure 7 It is a schematic diagram of the conductor structure of the present invention;

[0026] In the figure: 1. U-shaped seat; 2. square frame; 3. motor A; 4. laser head; 5. motor B; 6. disconnection mechanism; 7. stop mechanism; 8. shaft one; 9. shaft two; 61. swivel one; 62. swing rod; 63. swivel two; 64. slide rod; 65. slide cylinder; 66. spring; 67. rack; 68. magnet; 69. electromagnet; 611. swing mouth; 612. rotating column; 621. slide mouth; 631. fixed column; 632. gear ring one; 71. fixed ring; 72. swivel three; 73. forward and reverse motor; 74. gear; 711. block one; 7111. conductor; 721. block two; 722. gear ring two; 7211. buffer pad; 7212. magnet; 91. rubber sleeve; 911. rough strip groove. DETAILED DESCRIPTION

[0027] Reference Figure 1-Figure 7The present invention provides a technical solution: a laser head AB axis swing mechanism, comprising a U-shaped seat 1 and a stop mechanism 7, a square frame 2 is rotatably mounted on the U-shaped seat 1, an A motor 3 for controlling the rotation of the square frame 2 is also mounted on the U-shaped seat 1, a B motor 5 perpendicular to the driving shaft of the A motor 3 is mounted on the square frame 2, a rotating shaft 2 9 is mounted on the driving shaft of the B motor 5, a disconnecting mechanism 6 for disconnecting or connecting with the rotating shaft 2 9 is also mounted on the square frame 2, a rotating shaft 1 8 is mounted on the disconnecting mechanism 6, a laser head 4 is mounted on the rotating shaft 1 8, and the stop mechanism 7 is used to position and stop the rotating shaft 1 8.

[0028] In this embodiment, the disconnection mechanism 6 includes a rotating ring 61 rotatably connected to the square frame 2, a plurality of swing openings 611 are arranged on the circumference of the ring wall of the rotating ring 61, a rotating column 612 is installed at the center of the swing opening 611, a swing rod 62 is rotatably installed on the rotating column 612, and a sliding opening 621 is provided at the end of the swing rod 62 away from the center of the rotating ring 61, and the end of the swing rod 62 close to the center of the rotating ring 61 corresponds to the outer wall of the rotating shaft 2 9, and the end of the rotating ring 61 away from the rotating shaft 2 9 is fixed to the rotating shaft 8 The ring wall of the swivel 1 61 is also rotatably mounted with a swivel 2 63, and a fixed column 631 slidably connected with the sliding opening 621 is mounted on the side of the swivel 2 63 close to the swing rod 62, and a gear ring 1 632 is mounted on the outer wall of the swivel 2 63. A control push rod is mounted on the square frame 2, and a rack 67 for meshing with the gear ring 1 632 is mounted on the control push rod; the rack 67 is controlled by the control push rod to move, and the gear ring 1 632 is driven to rotate by the rack 67, and the gear ring 1 632 drives the swivel 1 The second ring 63 rotates, the second swivel ring 63 drives the fixed column 631 to slide along the sliding mouth 621, and the fixed column 631 drives the swing rod 62 to swing, so that the swing rod 62 contacts or separates from the rubber sleeve 91; specifically, when the laser head 4 needs to be adjusted, the swing rod 62 is controlled to contact with the rubber sleeve 91, and the rotating shaft 2 9, the first swivel ring 61 and the rotating shaft 1 8 rotate synchronously, so that at least the B motor 5 can be started to adjust the laser head 4. When the laser head 4 is adjusted, the control push rod is started to control the swing rod 62 to separate from the rubber sleeve 91, and the rotating shaft 1 8 is positioned and stopped under the action of the stop mechanism 7, and the power output by the B motor 5 to the rotating shaft 1 8 is instantly disconnected. Therefore, each time the laser head 4 is adjusted, the B motor 5 can drive the rotating shaft 1 8 to rotate in a continuously accelerated driving mode. When the laser head 4 is adjusted to the desired position, the power output by the B motor 5 to the rotating shaft 1 8 is directly disconnected, thereby shortening the time when the laser head 4 is adjusted to the desired position, making the efficiency of adjusting the laser head 4 higher.

[0029] In this embodiment, the control push rod includes a slide bar 64 installed on the square frame 2, a slide cylinder 65 slides on the slide bar 64, the slide cylinder 65 is connected to the slide bar 64 by a spring 66, a magnetic block 68 is installed at one end of the slide cylinder 65 away from the slide bar 64, and an electromagnet 69 installed on the square frame 2 is provided on the side of the magnetic block 68 away from the slide cylinder 65; specifically, when the electromagnet 69 is not started, the rocker arm 62 contacts the rubber sleeve 91, and when the electromagnet 69 is not started, the electromagnet 69 repels the magnetic block 68, driving the rocker arm 62 to separate from the rubber sleeve 91.

[0030] In this embodiment, a rubber sleeve 91 for cooperating with the swing rod 62 is installed on the outer wall of the second rotating shaft 9 to reduce the wear effect on the end of the swing rod 62.

[0031] In this embodiment, the rubber sleeve 91 is provided with rough grooves 911 in the axial direction to improve the accuracy of the contact connection of the rocker rod 62 .

[0032] In this embodiment, when the electromagnet 69 and the magnetic block 68 repel each other and separate, the swing rod 64 and the rubber sleeve 91 are separated.

[0033] In this embodiment, the stop mechanism 7 includes a fixed ring 71, a rotating ring 3 72 and a forward and reverse motor 73. The rotating ring 3 72 is rotatably mounted on the rotating shaft 1 8. The side of the rotating ring 3 72 close to the square frame 2 is installed with a gear ring 2 722, and the side of the rotating ring 3 72 away from the square frame 2 is installed with a stopper 2 721. The forward and reverse motor 73 is installed on the square frame 2, and a gear 74 meshing with the gear ring 2 722 is installed at the output end of the forward and reverse motor 73. The fixed ring 71 is fixed on the rotating shaft 1 8, and a stopper 1 71 corresponding to the stopper 2 721 is installed on the fixed ring 71. 1; wherein, when the laser head 4 does not need to be adjusted, the block 1 711 and the block 2 721 are in contact, and the rocker arm 62 and the rubber sleeve 91 are also in contact. When the laser head 4 needs to be adjusted, the forward and reverse motor 73 drives the gear 74 to drive the gear ring 2 722 to rotate, and the block 2 721 is adjusted to the position where the block 1 711 needs to stop and position. After that, at least the B motor 5 can be started to regulate the laser head 4. When the block 1 711 and the block 2 721 are in contact, the control push rod is started to complete the adjustment and stopping of the laser head 4.

[0034] In this embodiment, buffer pads 7211 are respectively installed on the two side surfaces of the second stopper 721 to facilitate the contact and fit between the first stopper 711 and the second stopper 721 .

[0035] In this embodiment, the block 1 711 is provided with a conductor 7111, and the block 2 721 is provided with a magnet 7212 attracted to the conductor 7111, so that the block 1 711 and the block 2 721 have a strong contact and fit strength, thereby stopping and positioning the rotating shaft 1 8.

[0036] In the specific implementation, initially, block 1 711 and block 2 721 are in contact, and the rocker arm 62 and the rubber sleeve 91 are also in contact. When the laser head 4 needs to be adjusted, the forward and reverse motor 73 drives the gear 74 to drive the gear ring 2 722 to rotate, and adjusts the block 2 721 to the position where the block 1 711 needs to be stopped and positioned. After that, at least the B motor 5 can be started to regulate the laser head 4. When the block 1 711 and the block 2 721 are in contact, the control push rod is started to complete the adjustment and stopping of the laser head 4. When the B motor 5 stops, the control push rod is closed to restore the rocker arm 62 and the rubber sleeve 91 to the contact state.

[0037] The above description is only a preferred specific implementation manner of the invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the invention, which should be covered by the protection scope of the present invention.

Claims

1. A laser head AB axis swing mechanism, comprising a U-shaped seat (1) and a stop mechanism (7), characterized in that: A square frame (2) is rotatably mounted on the U-shaped seat (1); an A motor (3) for controlling the rotation of the square frame (2) is also mounted on the U-shaped seat (1); a B motor (5) perpendicular to the drive shaft of the A motor (3) is mounted on the square frame (2); a second rotating shaft (9) is mounted on the drive shaft of the B motor (5); a disconnecting mechanism (6) for disconnecting or connecting with the second rotating shaft (9) is also mounted on the square frame (2); a first rotating shaft (8) is mounted on the disconnecting mechanism (6); a laser head (4) is mounted on the first rotating shaft (8); and the stopping mechanism (7) is used for positioning and stopping the first rotating shaft (8).

2. The laser head AB axis swing mechanism according to claim 1, characterized in that: The disconnection mechanism (6) comprises a rotating ring (61) rotatably connected to the square frame (2); a plurality of swing openings (611) are arranged on the circumference of the ring wall of the rotating ring (61); a rotating column (612) is installed at the center of the swing opening (611); a swing rod (62) is rotatably installed on the rotating column (612); a sliding opening (621) is provided at one end of the swing rod (62) away from the center of the rotating ring (61); an end of the swing rod (62) close to the center of the rotating ring (61) corresponds to the outer wall of the rotating shaft (9); the rotating ring One end of the rotating ring (61) away from the rotating shaft (9) is fixedly connected to the rotating shaft (8); a rotating ring (63) is rotatably mounted on the ring wall of the rotating ring (61); a fixed column (631) slidably connected to the sliding mouth (621) is mounted on the side of the rotating ring (63) close to the swing rod (62); a gear ring (632) is mounted on the outer wall of the rotating ring (63); a control push rod is mounted on the square frame (2); and a rack (67) for meshing with the gear ring (632) is mounted on the control push rod.

3. The laser head AB axis swing mechanism according to claim 2, characterized in that: The control push rod comprises a slide bar (64) mounted on a square frame (2), a slide cylinder (65) sliding on the slide bar (64), the slide cylinder (65) and the slide bar (64) being connected via a spring (66), a magnetic block (68) being mounted on one end of the slide cylinder (65) away from the slide bar (64), and an electromagnet (69) mounted on the square frame (2) being disposed on one side of the magnetic block (68) away from the slide cylinder (65).

4. The laser head AB axis swing mechanism according to claim 2, characterized in that: The outer wall of the second rotating shaft (9) is provided with a rubber sleeve (91) for cooperating with the swing rod (62).

5. The laser head AB axis swing mechanism according to claim 4, characterized in that: The rubber sleeve (91) is provided with a rough groove (911) in the axial direction.

6. The laser head AB axis swing mechanism according to claim 4, characterized in that: When the electromagnet (69) and the magnetic block (68) repel each other and separate, the swing rod (64) and the rubber sleeve (91) are separated.

7. The laser head AB axis swing mechanism according to claim 1, characterized in that: The stop mechanism (7) comprises a fixed ring (71), a rotating ring three (72) and a forward and reverse motor (73); the rotating ring three (72) is rotatably mounted on a rotating shaft one (8); a gear ring two (722) is mounted on a side of the rotating ring three (72) close to the square frame (2); a stop block two (721) is mounted on a side of the rotating ring three (72) away from the square frame (2); the forward and reverse motor (73) is mounted on the square frame (2); a gear (74) meshing with the gear ring two (722) is mounted on an output end of the forward and reverse motor (73); the fixed ring (71) is fixed on the rotating shaft one (8); and a stop block one (711) corresponding to the stop block two (721) is mounted on the fixed ring (71).

8. The laser head AB axis swing mechanism according to claim 7, characterized in that: Buffer pads (7211) are respectively installed on the two side surfaces of the second stopper (721).

9. The laser head AB axis swing mechanism according to claim 7, characterized in that: The first block (711) is provided with a conductor (7111), and the second block (721) is provided with a magnet (7212) that attracts the conductor (7111).

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